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Set of methods for naturally transforming riverbed of wide shallow river channel

A naturalization and river bed technology, applied in the direction of river regulation, barrages, weirs, etc., can solve the problems of reduced aquatic biodiversity, serious water pollution, fragile ecosystems, etc., to increase coordination, ensure continuity, Mitigates the effects of hydroscouring

Inactive Publication Date: 2019-02-01
贝斯特(广州)电梯工程有限公司
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Problems solved by technology

The artificial channelization of natural rivers has resulted in the simplification of the river ecosystem structure, the degradation of its functions, the reduction of aquatic biodiversity, and the fragility of the ecosystem. Under continuous artificial interference, the self-purification ability continues to decrease, and the water pollution becomes more and more serious. Stinky, until the whole ecosystem is necrotic

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  • Set of methods for naturally transforming riverbed of wide shallow river channel
  • Set of methods for naturally transforming riverbed of wide shallow river channel
  • Set of methods for naturally transforming riverbed of wide shallow river channel

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Embodiment Construction

[0017] Only for the 3rd method in the present invention-the river bank natural transformation, explain about the construction of the natural form of the meandering concave bank. For the concave bank 1 with large water shear force, arched riprap dam 3 can be built at the slope foot 2 of the revetment to slow down the erosion of the dispersed hydraulic force on the river bank. The dam body of the arch dam is made of natural block stones. The dam body is 0.3m long, 0.2m wide, and 0.3m high. Hygrophytes are planted in the gaps. The top 4 of the dam body is semicircular, and the smaller the angle α with the water flow direction 5 is, the better it should be controlled within 40°; ° to reduce the gap between the arch dams and slow down the erosion of concave banks to the greatest extent.

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Abstract

The invention discloses a set of methods for naturally transforming a riverbed of a wide shallow river channel, and belongs to the field of river channel ecological treatment. The methods specificallycomprise three kinds of methods, namely the W-shaped water-rolling weir dam construction method, the flow-blocking factor setting method and the river bank natural transformation method. According tothe set of methods, the river ecology and the ecological hydrology theory are used as guiding ideas, a complex river ecological system structure is aimed at being constructed and restored so as to restore the natural state of the wide shallow river channel, the self-cleaning capacity of the water body is improved, then the function integrity of a river ecological system is further improved, and finally the goal of building a healthy river ecosystem is realized.

Description

technical field [0001] The invention belongs to the field of river channel ecological management, and is especially suitable for the natural transformation of riverbeds of plain rivers (including riverbanks at the section where urban inland rivers flow into lakes and into the sea) or downstream wide and shallow river channels of mountainous rivers. Background technique [0002] Under the comprehensive effects of the earth's rotation, complex terrain, river bank erosion resistance and water centrifugal force, natural rivers often present serpentine meanders, and meandering degree has become one of the important indicators in the river health assessment index system. The bottom texture of natural rivers is complex, and there are many shoal-deep pool structures, and the cross-section of the river channel is often asymmetrical. The terrain of the section with strong hydraulic erosion is steep, and the opposite bank is mostly a river beach with a gentle slope. In addition, the re...

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Application Information

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IPC IPC(8): E02B3/02E02B3/06E02B7/06
CPCE02B3/02E02B3/06E02B7/06Y02A20/402
Inventor 迟国梁
Owner 贝斯特(广州)电梯工程有限公司
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